Improvement in post-hole auger



tntrd gratte @datent dtjhiine.

Letters Patent No, 94,412, dated .August 31, 1869.

IMPROVMENT IN POST-HOLE AUG-ER.

The Schedule referred to in these Letters Patent and making part of thelame HIM To all 1vhom`c'tmay concern:

Be it known that I, IRA HART, of Clarksburg, in t'he ,county ofHarrison, and State of Vest Virginia, have invented anew and usefulImprovement in Post- Hole Angers; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, making l part of thisspecifcatiomand to the letters of reference marked thereon.

The nature of myinvention consists in forming the bowl of a post-holeauger without a centre-piece, and in making the knives or cuttersseparate and 'distinct from the bowl, and attaching them thereto bymeans of bolts or rivets'.

To enable those skilled inthe art to which m'y invention appert-ains tomake and use the same, I will B is a cylindrical bowl, which may be ofeither cast or sheet-metal. The upper end is open, and is riveted to theforked ends a a, and the lower end is cast or turned in, so as to leavean opening iu the centre, and

4is formed with two or more inclined surfaces, b, to

which the cutters O are attached, by means of rivets or screw-bolts andnuts.

The cutters may be of steel, or of iron with chilled cutting-edges, andshould beattaohed to the howl, so as to project suiciently far to insurethe cutting of a hole somewhat larger than the bowl, to allow it to beeasily withdrawn'.

By having the cutters detachable, they can be readily removed, for thepurpose of sharpening or repairing.

Having thus described my invention,

What I claim as new, and desire to secure byLef ters Patent, is

The bowl B, provided with detachable cutters O, as shown and described,for the purpose specied.

' IRA HART.

Witnesses:

H. L. MUNDAY, H. J armures.

